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【多选题】
基因经常被断开( )。A.
反映了真核生物的mRNA是多顺反子
B.
因为编码序列外显子被非编码序列内含子所分隔
C.
因为真核生物的DNA为线性而且被分开在各个染色体上，所以同一个基因的不同部分可能分布于不同的染色体上
D.
表明初始转录产物必须被加工后被翻译
E.
表明基因可能有多种表达产物，因为它有可能在mRNA加工的过程中采用不同的外显子重组方式
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【简答题】银时代“产品展示”页
【单选题】听力原文： Vice-President Dick Chency has left a Washington hospital after doctors implanted a small device in his chest Saturday morning to prevent further episodes of an irregular heartbeat. VOA' s Paula...
A.
Vice-President Dick Cheney has visited a hospital in Washington.
B.
Vice-President Dick Cheney came to see a friend in hospital.
C.
Doctors have operated on Vice-President Dick Cheney.
D.
Something is wrong with Vice-President Dick Cheney's stomach.
【多选题】在原始凭证上书写阿拉伯数字时,正确的有( )
A.
所有以元为单位的,一律填写到角分
B.
无角无分的,角位和分位可写“00”,或者符号“
C.
有角无分的,分位应当写“0
D.
有角无分的,分位也可以用符号“-”代替
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
South Koreans do not care much about English pronunciation
B.
their physical disability keeps them from doing so
C.
Korean language does not include the phonetic sounds 'L' and 'R'
D.
they are deaf to the different pronunciation of some letters
【简答题】自动气象站主要由( )、( )、 ( )、 ( )和( )等几部分组成。
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